Cable-hanger.



. 11 rum 3 No. 895,171. PATENTED AUG.4, 190a. J. D. B. DUNCAN.

CABLE HANGER.

APPLICATION FILED NOV. 29,, 11301.

WITNESSES.

A TTOHNEKS East Orange,

UNITED (STATES FATE CABLE-HANGER.

Specification of Letters Patent.

P atented Aug. 4', 1908.

Application filed November 29, 1907. Serial No. 404,267.

To all whom it may concern:

Be it known that I, JOHN D. E. Dtmoax, a citizen of the United States, and resident of in the count* of Essex and State of New Jersey, have invented certain new and useful Improvements Relating to Cable-Hangers, of which the following is a specification, taken in connection with the accompanying drawings.

This invention relates to hangers and relates especially to cable hangers adapted for use with high tension insulators.

In the accompanying drawings showing an illustrative embodiment of this invention in which the same reference numerals refer to similar parts, Figure 1 is a side elevation of the hanger partly in section, shown in connection with a petticoat insulator. Fig. 2 is a sectional view on-th'e line 22 of Fig. 1, showing the parts of the hanger ready to be assembled. Fig. 3 is an end elevation of the hanger shown in Fig. 1. Fig. 4 is a side elevation showing a modified form of hanger. Fig. 5 is a side elevation showiflg the hanger used in connection with a plurality of )et'ticoat insulators. Figs. 6, 7 and 8 are etail sectional "iews showing different forms of bushings used with the hanger to 006 )erate with cables of different diameters. ig. 9 shows a modified form of groove.

In the illustrated embodiment of this invention shown in the drawing, 1 is a cable hanger which may comprise a body 2 having a boss 3 on the upper central ortion of the body to which, straps 4 may be secured by the in 5 which passes through openings in the ower end of the straps 4 and in the boss 'petticoats 10, sup

3, the upper ends of the straps being also spaced apart to accommodate the eye 6 of a bolt 7 or other supporting means held there by a pin 8, as shown in Figs. 1 and 3. This bolt 7 amy be secured within a petticoat insulator 9, made up of one or more nested orted within a bell 11, or the bolt 7 may be lung in any other suitable manner from the pole or other support.

The lower part of the body 2 may be formed with symmetrically arranged open hooks having depressed or flaring ends 13. The clamp 14 is preferably in the form of a plate having four apertures 15 for the reception of bolts 16 which may also pass throu h the apertures 17 in the body 2, to secure y clamp the arts together by the nuts 18. \Vithin both the body portion 2 and the clamping member 14, suitable seats 19 and" 20 may be formed within which the cable 21 may be clamped after having been sli )ped' into the hooks 13, 13.. The interior S111 aces of the books 13 are formed smooth so as to permit nithout injury the ready longitudinal adjustment of the cable with respect to the hanger; and the depressed or flarmg ends 13 of the hooks form saddles 29 to support the cable without chafing or injury in case of breakage or other emergenc NT 10mm. .1

JOHN D. DUNCAN, or EAST ORAXGE, New nz'asnvz.

To insure the, firm gri )in of the cable c ll 0 within the 'seats 19 and 20, they may beroughened, as shown in Fig. 1, by forming blunt annular teeth and grooves 22 within them, although the spiral gripping teeth or grooves. 10 shown in Fig. 9 may be used which may fit and cooperate with the strands of the cable to be supported.

Suitable bushings of sheet copper 'or other protecting material may be interposed between the cable and the parts of the hanger which clamp it in position. The split copper bushing 23, may be used for this purpose as indicated in Fig. 6 and also halved bushings of different thicknes es may be used as indicated in Figs. 7 and S, the hanger properly cooperating with cables of different sizes by using a bushing of the proper thickness to give the desired clamping action. In Fig. 7, the bushing 24 is shown considerably thicker than the bushing 25 of Fig. 8 which cooperates with a larger cable, These bushings are preferably of such length as to fit between the inner ends or shoulders 28 of the books 12 so as to be properly positioned within the hanger as the parts are assembled.

The hanger may be mounted from a suitable insulator of the multiple petticoat form shown in Fig. 5 or otherwise; and a swiveling connection such as is shown in Fig. 4 is interposed between the insulator and the hanger if preferred, by forming a vertically perforated boss 3, on the hanger througi which the bolt 26 passes and is held swivelingly in position by the nut 27. The cable may then he slipped over the hooks 12 and adjusted longitudinally with respect to the hanger and then the clamp brought firmly up into gripping position upon the cable and protecting bushing if desired, so as to hold the cable firmly and without injury even under extreme service conditions.

Having described thi invention in connecinvention is not, of course, to be limited,

what is claimed as new and what is desired to be secured by Letters Patent is set forth in the appended claims.

1. In hangers, a petticoat insulator, a hanger body having supporting means adja cent its upper portion to support said body from said insulator, a plurality of symmetrically located hooks formed on the lower part of said body and projecting from one face of the same, said hooks being )rovidcd with downwardly 1' aring outer ends, a clamp to engage said bodybetween said hooks, there being seats provided with spiral gripping grooves formed in said body and clamp between said hooks to cooperate with a cable, a bushing for said cable to engage the inner shoulders of said hooks and means to force said clamp and said body together upon a cable. I

2. In hangers, .an insulator, a hanger body secured to said insulator, a plurality of symmetrically located hooks provided with flaring outer ends formed on the lower part of said body, a clamp to engage said body between said hooks, there being seats provided with gripping means formed in said body and clamp between said hooks to cooperate with a cable, a bushing for said cable bet ween said hooks and means to force said clamp and body together upon a cable.

3. In hangers, body having supporting means adjacent its upper portion, a plurality of s v nlnetrically located hooks formed on the lower part of said body and projecting from one face of the 831110, said hooks being provided with downwardly flaring outer ends, a clamp to engage said body between said hooks,- there being seats )rovidcd with spiral gripping grooves formed in said body and clamp between and substantially in line with said hooks to cooperate with a cable, a yieldable bushing for said cable to engage the inner end of said hooks and means to force said clamp and body together.

4. In hangers, a body having supporting means adjacent its upper portion, a plurality of hooks l'ormed on the lower portion of said body, said hooks being provided with flaring outer ends, a clamp to engage said body be-' 6. In han ers a bed r havin 511) )ortin n 7 h h means, a plurality of symmetrically ocatcd hooks formed on said body and projecting from one face of the same to cooperate with a cable and a clamp to engage said body between said hooks and adapted to perinanently secure a. cable to said body. 7. In hangers, a body having supporting ,means and a hook to engage a cable, a clamp to engage said body, there being seats formed in said body and clam to cooperate with a. table engaged by said llook. S. In hangers, abodyhavingmeans formed thereon to engage and securely suspend a cable, a bushing for said cable and a clamp to engage saidbody, there being seats formed in'said body and clamp to be engaged by said bushing, said clamp permanently securing said cable in'position on said body without, injury to said cable.

JOHN D. E. DUNCAN. lVi tnesses:

IiIARR-Y L. DUNCAN, 

